Evidence map›Paper›PMID 29443976›Full record

ArticleNature chemical biology2018

How many human proteoforms are there?

Ruedi Aebersold, Jeffrey N Agar, I Jonathan Amster, Mark S Baker, Carolyn R Bertozzi, Emily S Boja, Catherine E Costello, Benjamin F Cravatt, Catherine Fenselau, Benjamin A Garcia and 43 more

Open access · greenAbstract read
In one paragraph

Article in Nature chemical biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 493 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
493citing papers in PubMed, 1 pooled it
45.0field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

493 citing papers in PubMed, 1 synthesis or guideline pooled it, 908 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Protein rheostasis: quality control in metastable proteomes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
    Review
  5. Article
  6. Review
  7. Article
  8. A Draft Map of E. coli Proteoforms.Analytical chemistry · 2026
    Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Human SRP Subunits Coordinate Protein Targeting and mRNA Quality Control.bioRxiv : the preprint server for biology · 2026
    Article
  18. Article
  19. Review
  20. Article

433 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

53 authors at 20 institutions in 7 countries.

Ruedi AebersoldDepartment of Biology, ETH Zurich, Zürich, Switzerland.
Jeffrey N AgarDepartment of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts, USA.
I Jonathan AmsterDepartment of Chemistry, University of Georgia, Athens, Georgia, USA.ORCID 0000-0001-7523-5144
Mark S BakerDepartment of Biomedical Sciences, Macquarie University, Sydney, New South Wales, Australia.ORCID 0000-0001-5858-4035
Carolyn R BertozziDepartment of Chemistry, Stanford University, Stanford, California, USA.
Emily S BojaOffice of Cancer Clinical Proteomics Research, National Cancer Institute, Bethesda, Maryland, USA.
Catherine E CostelloDepartment of Biochemistry, Boston University School of Medicine, Boston, Massachusetts, USA.
Benjamin F CravattDepartment of Molecular Medicine, The Scripps Research Institute, La Jolla, California, USA.ORCID 0000-0001-5330-3492
Catherine FenselauDepartment of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, USA.
Benjamin A GarciaDepartment of Biochemistry and Biophysics, University of Pennsylvania School of Medicine, and Epigenetics Institute, Philadelphia, Pennsylvania, USA.
Ying GeDepartment of Cell and Regenerative Biology, Human Proteomics Program, University of Wisconsin-Madison, Madison, Wisconsin, USA.
Jeremy GunawardenaDepartment of Systems Biology, Harvard Medical School, Boston, Massachusetts, USA.
Ronald C HendricksonMemorial Sloan Kettering Cancer Center, New York, New York, USA.
Paul J HergenrotherDepartment of Chemistry, University of Illinois, Urbana, Illinois, USA.
Christian G HuberDepartment of Biosciences and Christian Doppler Laboratory for Biosimilar Characterization, University of Salzburg, Salzburg, Austria.ORCID 0000-0001-8358-1880
Alexander R IvanovDepartment of Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts, USA.
Ole N JensenDepartment of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark.
Michael C JewettThe Center for Synthetic Biology, Northwestern University, Evanston, Illinois, USA.
Neil L KelleherDepartment of Chemistry, Molecular Biosciences and the Proteomics Center of Excellence, Northwestern University, Evanston, Illinois, USA.ORCID 0000-0002-8815-3372
Laura L KiesslingDepartment of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.ORCID 0000-0001-6829-1500
Nevan J KroganDepartment of Cellular Molecular Pharmacology, University of California, San Francisco, California, USA.
Martin R LarsenDepartment of Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark.
Joseph A LooDepartment of Biological Chemistry, University of California, Los Angeles, California, USA.ORCID 0000-0001-9989-1437
Rachel R Ogorzalek LooDepartment of Biological Chemistry, University of California, Los Angeles, California, USA.
Emma LundbergScience for Life Laboratory, KTH Royal Institute of Technology, Stockholm, Sweden.
Michael J MacCossDepartment of Genome Sciences, University of Washington, Seattle, Washington, USA.
Parag MallickDepartment of Chemistry, Stanford University, Stanford, California, USA.
Vamsi K MoothaDepartment of Systems Biology, Harvard Medical School, Boston, Massachusetts, USA.
Milan MrksichThe Center for Synthetic Biology, Northwestern University, Evanston, Illinois, USA.
Tom W MuirDepartment of Chemistry, Princeton University, Princeton, New Jersey, USA.
Steven M PatrieDepartment of Chemistry, Molecular Biosciences and the Proteomics Center of Excellence, Northwestern University, Evanston, Illinois, USA.
James J PesaventoDepartment of Biology, Saint Mary's College of California, Moraga, California, USA.ORCID 0000-0001-6107-3666
Sharon J PitteriDepartment of Chemistry, Stanford University, Stanford, California, USA.ORCID 0000-0002-3119-873X
Henry RodriguezOffice of Cancer Clinical Proteomics Research, National Cancer Institute, Bethesda, Maryland, USA.
Alan SaghatelianSalk Institute for Biological Studies, Torrey Pines, California, USA.
Wendy SandovalApplied Proteomics, Genentech, Inc., San Francisco, California, USA.
Hartmut SchlüterDepartment of Clinical Chemistry/Central Laboratories, University Medical Center Hamburg - Eppendorf, Hamburg, Germany.ORCID 0000-0002-9358-7036
Salvatore SechiNational Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland, USA.
Sarah A SlavoffDepartment of Chemistry, Yale University, New Haven, Connecticut, USA.
Lloyd M SmithDepartment of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin, USA.
Michael P SnyderDepartment of Genetics, Stanford University, Stanford, California, USA.
Paul M ThomasDepartment of Chemistry, Molecular Biosciences and the Proteomics Center of Excellence, Northwestern University, Evanston, Illinois, USA.ORCID 0000-0003-2887-4765
Mathias UhlénDepartment of Microbiology, KTH Royal Institute of Technology, Stockholm, Sweden.
Jennifer E Van EykCedars Sinai Medical Center, Los Angeles, California, USA.
Marc VidalDepartment of Genetics, Harvard Medical School, Boston, Massachusetts, USA.
David R WaltDepartment of Pathology, Harvard Medical School and Wyss Institute at Harvard University, Boston, Massachusetts, USA.
Forest M WhiteDepartment of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
Evan R WilliamsDepartment of Chemistry, University of California, Berkeley, Berkeley, California, USA.
Therese WohlschlagerDepartment of Biosciences and Christian Doppler Laboratory for Biosimilar Characterization, University of Salzburg, Salzburg, Austria.
Vicki H WysockiDepartment of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio, USA.
Nathan A YatesDepartment of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
Nicolas L YoungVerna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, Texas, USA.ORCID 0000-0002-3323-2815
Bing ZhangVerna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, Texas, USA.ORCID 0000-0001-8676-2425
Northwestern University · USHarvard University · USStanford University · USBaylor College of Medicine · USCancer Clinic · USMassachusetts Institute of Technology · USNortheastern University · USUniversity of California, Los Angeles · USUniversity of Salzburg · ATUniversity of Southern Denmark · DKUniversity of Wisconsin–Madison · USAbterra Biosciences (United States) · USBoston University · USCedars-Sinai Medical Center · USETH Zurich · CHKTH Royal Institute of Technology · SEMacquarie University · AUMemorial Sloan Kettering Cancer Center · USNational Institute of Diabetes and Digestive and Kidney Diseases · USPrinceton University · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Hongbiao Carl Lekaye · 1985 to 2026
$347.4M
Viral Vector Core (VVC)P30CA014195 · NCI · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI Reuben Shaw · 1985 to 2026
$82.8M
Shared Resources Core 2: Quantitative Proteomics CoreP01CA196539 · NCI · ROCKEFELLER UNIVERSITY · PI MUIR, TOM · 2015 to 2024
$17.6M
Genomic and Proteomic Architecture of AtherosclerosisR01HL111362 · NHLBI · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI HERRINGTON, DAVID MCLEOD · 2012 to 2021
$17.2M
TR&D 7: Cell Specific ProteomicsP41GM108569 · NIGMS · NORTHWESTERN UNIVERSITY · PI KELLEHER, NEIL L · 2015 to 2024
$13.6M
Protein Chemistry and ProteomicsP01HL112730 · NHLBI · SAN DIEGO STATE UNIVERSITY · PI VAN EYK, JENNIFER E · 2013 to 2017
$12.0M
Viral modulation of epitranscriptomic mechanismsR01AI118891 · NIAID · WASHINGTON UNIVERSITY · PI GARCIA, BENJAMIN A, WEITZMAN, MATTHEW D. · 2015 to 2025
$5.4M
Ubiquitinated Proteins in Exosomes of Immune Suppressive Myeloid CellsR01GM021248 · NIGMS · UNIV OF MARYLAND, COLLEGE PARK · PI FENSELAU, CATHERINE C, FUSHMAN, DAVID · 1985 to 2017
$4.6M
Mitochondrial Turnover in the Human HeartR01HL132075 · NHLBI · CEDARS-SINAI MEDICAL CENTER · PI GOTTLIEB, ROBERTA A., VAN EYK, JENNIFER E · 2017 to 2020
$2.1M
Algorithms for Glyco-Proteoform DetectionR01GM115739 · NIGMS · UT SOUTHWESTERN MEDICAL CENTER · PI PATRIE, STEVEN MATTHEW · 2016 to 2020
$1.9M
Intact Proteoform Identification and QuantificationR01GM114292 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI GOULD, MICHAEL N, SMITH, LLOYD M · 2015 to 2018
$1.6M
Understanding the Role of Combinatorial Histone PTM PatternsR01GM110174 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI GARCIA, BENJAMIN A · 2014 to 2017
$1.3M
NCI NIH HHS P01 CA196539NCI NIH HHS P30 CA008748NCI NIH HHS P30 CA014195NHLBI NIH HHS P01 HL112730NHLBI NIH HHS R01 HL111362NHLBI NIH HHS R01 HL132075NIAID NIH HHS R01 AI118891NIGMS NIH HHS P41 GM108569NIGMS NIH HHS R01 GM021248NIGMS NIH HHS R01 GM110174NIGMS NIH HHS R01 GM114292NIGMS NIH HHS R01 GM115739NIH HHS S10 OD019938
6 · The paper itself

Abstract

Despite decades of accumulated knowledge about proteins and their post-translational modifications (PTMs), numerous questions remain regarding their molecular composition and biological function. One of the most fundamental queries is the extent to which the combinations of DNA-, RNA- and PTM-level variations explode the complexity of the human proteome. Here, we outline what we know from current databases and measurement strategies including mass spectrometry-based proteomics. In doing so, we examine prevailing notions about the number of modifications displayed on human proteins and how they combine to generate the protein diversity underlying health and disease. We frame central issues regarding determination of protein-level variation and PTMs, including some paradoxes present in the field today. We use this framework to assess existing data and to ask the question, "How many distinct primary structures of proteins (proteoforms) are created from the 20,300 human genes?" We also explore prospects for improving measurements to better regularize protein-level biology and efficiently associate PTMs to function and phenotype.

Indexed as

Genome, HumanProtein Processing, Post-TranslationalDatabases, ProteinHumansMass SpectrometryPhenotypeProtein BiosynthesisProtein IsoformsProteinsProteomeProteomicsUbiquitinProtein IsoformsProteinsProteomeUbiquitin

Identifiers

PMID29443976
PMCPMC5837046
OpenAlexW2786505886

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.